Ineffable Ontological Detanglement .: Introspective Assistance & Mental Analysis Manual
WARNING: Woah what are you doin'? Stay away from this one until you've read all sorts of altered states of consciousness broken brain delirium shit.
When two (level two cognitive functioning) people are at their most absolute broken wits end over a person or a concept, they may both simultaneously realize they have the option to build a subconscious collective containment field.
They suddenly begin babbling delirious at each other all of the horrible made up evil that is this person or concept, they return to it as often as they can for hours at a time, repressing the memory of what they're doing. Most people maintain it for about a week to a month before they clue in enough to stop.
Now their subconsciouses are interconnected, they know just how to react and respond to each other over this person or concept and they are always in agreement. They know no matter what, they are safe.